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双折射材料的温度修正 Birefringent Material Temperature Modification =s2*H8] *)T^ChD, 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: nRS} }6Q Jhhb7uU+ 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline )9`qG:b' \&3+D8H>n 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline g|yvF-+ 'Aq{UGN 3.Loop over the baseline material samples and determine the number of wavelength entries pJ"qu,w d#4**BM 4.Loop over each sampled wavelength entry in the baseline material J @1!Oq> :q%M_ a.Modify the ordinary and extraordinary refractive index values using (2) above BLiF
5 ]MitOkX b.Apply the modified values to the non-baseline material w``ST Fj3a.' 5.Set a description on the non-baseline material indicating the temperature change from baseline q ^N7I@Y | rtD.,m 脚本编程及GUI例程请下载链接: c9 _rmz8 XJ|
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